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Method and computer program product of processing sound segment and hearing aid

a computer program and sound segment technology, applied in signal processing, deaf-aid sets, electrical devices, etc., can solve the problems of serious sound distortion, rough sound between, and none of the abovementioned known prior art references disclose a solution to this problem, so as to reduce the proportion of energy over a hz

Active Publication Date: 2015-11-10
AIROHA TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is related to a method for processing mixed sound segments that have high-frequency and low-frequency sounds. The method involves checking the type of sound segment and performing a frequency lowering process accordingly. If the sound segment is of high-frequency type, the method includes lowering its frequency by at least partially processing it with its frequency over B Hz, wherein the energy of the processed portion should not decrease. On the other hand, if the sound segment is of mixed-frequency type, the method includes first lowering its frequency by at least partially processing it with its frequency over B Hz, and then performing a second frequency lowering process to decrease the energy of the portion with its frequency over B Hz. The method ensures efficient processing of mixed sound segments and enhances the overall quality of the processed signals.

Problems solved by technology

However, this known prior art compresses all audio signals, which may result in serious sound distortion.
However, sometimes it is difficult to classify this kind of intermediate mixed sound, resulting in a rough sound between “a” and “t” while processing “at”.
None of the abovementioned known prior art references disclose a solution to this problem.

Method used

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  • Method and computer program product of processing sound segment and hearing aid
  • Method and computer program product of processing sound segment and hearing aid
  • Method and computer program product of processing sound segment and hearing aid

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Embodiment Construction

[0026]To clarify the above and other purposes, features, and advantages of this invention, a specific embodiment of this invention is especially listed and described in detail with the attached figures as follows.

[0027]Please refer to FIG. 1, which illustrates a structural drawing of a hearing aid according to the present invention.

[0028]The hearing aid 10 of the present invention comprises a sound receiver 11, a sound processing module 12 and a speaker 13. The sound receiver 11 is used for receiving an input sound 20. The input sound 20 is processed by the sound processing module 12 for being outputted through the speaker 13 to a hearing-impaired listener 81. The sound receiver 11 can be a microphone or any other equivalent sound receiving equipment, and the speaker 13 (which can also include an amplifier) can be a headphone or any other equivalent sound outputting equipment without being limited to the above scope. The sound processing module 12 is generally composed of a sound ef...

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PUM

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Abstract

A method of processing a sound segment is used in a hearing aid. If the sound segment is a high-frequency type, the high-frequency portion of the sound segment will be processed with a frequency lowering process. If the sound segment is a mixed-frequency type (between high-frequency and low-frequency), the energy of at least some portion of the high-frequency portion of the sound segment will be decreased and then processed with a frequency lowering process.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a method of and a computer product for processing sound segments, and a hearing aid, for improving the sound accuracy heard by a hearing-impaired listener.[0003]2. Description of the Related Art[0004]Because most hearing-impaired listeners (including older adults) have more problems hearing high-frequency sounds, a hearing aid is often used for applying a frequency-lowering process on high-frequency sounds.[0005]U.S. Pat. No. 6,577,739 discloses an “apparatus and methods for proportional audio compression and frequency shifting”, which provides an understandable audio signal to listeners who have hearing loss in particular frequency ranges by proportionally compressing the audio signal. However, this known prior art compresses all audio signals, which may result in serious sound distortion.[0006]U.S. Pat. No. 7,609,841 discloses a “frequency shifter for use in adaptive feedback canceller...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H04R25/00
CPCH04R25/35H04R25/353H04R25/356H04R25/505H04R2225/43H04R2430/01H04R2430/03
Inventor LIAW, VINCENT SHUANG-PUNGCHAO, KUAN-LIYOUNG, NEO BOB CHIH-YUNGYANG, KUO-PING
Owner AIROHA TECHNOLOGY CORPORATION
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